<?php
/**
 * Copyright (c) 2010, Slawomir Mazur <mazursllawek@gmail.com>
 * 
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions 
 * are met:
 * 
 * o Redistributions of source code must retain the above copyright notice, 
 *   this list of conditions and the following disclaimer.
 * o Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * o Neither the name of the Softisland nor the names of its contributors
 *   may be used to endorse or promote products derived from this software
 *   without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 
 * HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 
 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
/**
 * Enter description here...
 *
 * @package     admin
 * @copyright   Slawomir Mazur (c) 2010 (http://www.zend.com/zce.php?c=ZEND011643)
 * @license     http://www.opensource.org/licenses/bsd-license.php
 * @author      Slawomir Mazur <mazursllawek@gmail.com>
 */

class Gp_Core_Config
{
	public function getModelInstance($modelClass = '', $constructArguments = array())
	{
		$className = $this->getModelClassName($modelClass);		
		if (class_exists($className)) {
			$obj = new $className($constructArguments);
			return $obj;
		} else {
			return false;
		}
	}
	
	protected function getModelClassName($modelClass)
    {
        $modelClass = trim($modelClass);
    	if (false === strpos($modelClass, '/')) {
            return $modelClass;
        }
        return $this->getGroupedClassName('model', $modelClass);
    }
    
    /**
     * Retrieve class name by class group
     *
     * @param   string $groupType currently supported model, block, helper
     * @param   string $classId slash separated class identifier, ex. group/class
     * @return  string
     */
    protected function getGroupedClassName($groupType = '', $classId)
    {
    	$classArr = explode('/', trim($classId));
        $module = $classArr[0];
        $class = !empty($classArr[1]) ? $classArr[1] : null;
    	
        $className = $module . '_model';
        
        if (!empty($class)) {
        	$className .= '_' . $class;
        }
        $className = uc_words($className);
        
        Gp_Core_ModelLoader::loadClass($className, APPLICATION_PATH . DS . 'modules');

        return $className;
    }
}